.TH std::feupdateenv 3 "2024.06.10" "http://cppreference.com" "C++ Standard Libary"
.SH NAME
std::feupdateenv \- std::feupdateenv

.SH Synopsis
   Defined in header <cfenv>
   int feupdateenv( const std::fenv_t* envp )  \fI(since C++11)\fP

   First, remembers the currently raised floating-point exceptions, then restores the
   floating-point environment from the object pointed to by envp (similar to
   std::fesetenv), then raises the floating-point exceptions that were saved.

   This function may be used to end the non-stop mode established by an earlier call to
   std::feholdexcept.

.SH Parameters

   envp - pointer to the object of type std::fenv_t set by an earlier call to
          std::feholdexcept or std::fegetenv or equal to FE_DFL_ENV

.SH Return value

   0 on success, non-zero otherwise.

.SH See also

   feholdexcept saves the environment, clears all status flags and ignores all future
   \fI(C++11)\fP      errors
                \fI(function)\fP
   fegetenv     saves or restores the current floating-point environment
   fesetenv     \fI(function)\fP
   \fI(C++11)\fP
   FE_DFL_ENV   default floating-point environment
   \fI(C++11)\fP      (macro constant)
   C documentation for
   feupdateenv
